/*******************************************************************************
 * Copyright 2011, 2012 Chris Banes.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *******************************************************************************/

package com.estronger.pull_to_refresh_expandablelist;

import android.annotation.TargetApi;
import android.content.Context;
import android.content.SharedPreferences;
import android.os.Build.VERSION;
import android.os.Build.VERSION_CODES;
import android.text.format.DateUtils;
import android.util.AttributeSet;
import android.view.View;
import android.widget.BaseExpandableListAdapter;
import android.widget.ExpandableListView;

import java.util.Calendar;

public class PullToRefreshExpandableListView extends PullToRefreshAdapterViewBase<ExpandableListView> {
    private String saveState = "";

    public PullToRefreshExpandableListView(Context context) {
        super(context);
    }

    public PullToRefreshExpandableListView(Context context, AttributeSet attrs) {
        super(context, attrs);
        

        getLoadingLayoutProxy().setLastUpdatedLabel(getUpdateTimeState(saveState));
    }

    public void setUpdateStaeText(String fun) {
        saveState = fun;
    }

    private void saveUpdateTimeState(String func, String timeText) {
        SharedPreferences.Editor editor = getContext().getSharedPreferences(
                "pullTextView", Context.MODE_PRIVATE).edit();
        editor.putString(func, timeText);
        editor.commit();
    }

    private String getUpdateTimeState(String func) {
        return getContext().getSharedPreferences("pullTextView",
                Context.MODE_PRIVATE).getString(func, "");
    }

    public PullToRefreshExpandableListView(Context context, Mode mode) {
        super(context, mode);
    }

    public PullToRefreshExpandableListView(Context context, Mode mode, AnimationStyle style) {
        super(context, mode, style);
    }

    @Override
    public final Orientation getPullToRefreshScrollDirection() {
        return Orientation.VERTICAL;
    }
    
    
    public void setAdapter(BaseExpandableListAdapter mAdapter ) {
    	// TODO Auto-generated method stub
    	getRefreshableView().setAdapter(mAdapter);
    }

    @Override
    protected ExpandableListView createRefreshableView(Context context, AttributeSet attrs) {
        final ExpandableListView lv;
        if (VERSION.SDK_INT >= VERSION_CODES.GINGERBREAD) {
            lv = new InternalExpandableListViewSDK9(context, attrs);
        } else {
            lv = new InternalExpandableListView(context, attrs);
        }

        // Set it to this so it can be used in ListActivity/ListFragment
        lv.setId(android.R.id.list);
        return lv;
    }

    class InternalExpandableListView extends ExpandableListView implements EmptyViewMethodAccessor {

        public InternalExpandableListView(Context context, AttributeSet attrs) {
            super(context, attrs);
        }

        @Override
        public void setEmptyView(View emptyView) {
            PullToRefreshExpandableListView.this.setEmptyView(emptyView);
        }

        @Override
        public void setEmptyViewInternal(View emptyView) {
            super.setEmptyView(emptyView);
        }
    }

    @TargetApi(9)
    final class InternalExpandableListViewSDK9 extends InternalExpandableListView {

        public InternalExpandableListViewSDK9(Context context, AttributeSet attrs) {
            super(context, attrs);
        }

        @Override
        protected boolean overScrollBy(int deltaX, int deltaY, int scrollX, int scrollY, int scrollRangeX,
                int scrollRangeY,
                int maxOverScrollX, int maxOverScrollY, boolean isTouchEvent) {

            final boolean returnValue = super.overScrollBy(deltaX, deltaY, scrollX, scrollY, scrollRangeX,
                    scrollRangeY, maxOverScrollX, maxOverScrollY, isTouchEvent);

            // Does all of the hard work...
            OverscrollHelper.overScrollBy(PullToRefreshExpandableListView.this, deltaX, scrollX, deltaY, scrollY,
                    isTouchEvent);

            return returnValue;
        }
    }
    private String keyWord;
	
	
	public void setUpdateKeyWord(String keyword){
		keyWord=keyword;
	}
	

    @Override
    public void onRefreshComplete() {
        // TODO Auto-generated method stub
        super.onRefreshComplete();

        if(keyWord!=null){
			ReadPrefrenceUtil.saveUpdateTimeState(
				 keyWord,
                 "更新于 "
                         + DateUtils.formatDateTime(getContext(), Calendar
                                 .getInstance().getTimeInMillis(),
                                 DateUtils.FORMAT_SHOW_TIME
                                         | DateUtils.FORMAT_SHOW_DATE
                                         | DateUtils.FORMAT_ABBREV_ALL));
         getLoadingLayoutProxy().setLastUpdatedLabel(
        		 ReadPrefrenceUtil.getUpdateTimeState(keyWord));
		}
    }
}
